4 groups (23 tags):

main file extensions (3): file extensions with most lines of code in a repository
all file extensions (7): file extensions with at least one file in a repository
hidden folders (1): folders with ".*" like names
hidden files (12): files with ".*" like names

Tag	# repositories	LOC (main)	LOC (test)	LOC (active)	LOC (new)	# commits (30 days)	# contributors (30 days)
main file extensions (3) : file extensions with most lines of code in a repository 6 repositories, 19K lines of main code, 2.1K lines of other code tag dependencies: 3D graph (via repositories) \| 3D graph (excluding repositories) \| 2D graph (via repositories) \| 2D graph (excluding repositories) 2D graph (excluding repositories)
rb	2 repositories (33%)	13,083 (69%)	17	-	-	-	-
erb	2 repositories (33%)	3,835 (20%)	52	1,239	-	-	-
pp	2 repositories (33%)	1,780 (9%)	8	-	-	-	-
all file extensions (7) : file extensions with at least one file in a repository 6 repositories, 19K lines of main code, 2.1K lines of other code tag dependencies: 3D graph (via repositories) \| 3D graph (excluding repositories) \| 2D graph (via repositories) \| 2D graph (excluding repositories) 2D graph (excluding repositories)
erb	6 repositories (100%)	18,698 (100%)	77	1,239	-	-	-
pp	6 repositories (100%)	18,698 (100%)	77	1,239	-	-	-
rb	5 repositories (83%)	16,210 (86%)	69	-	-	-	-
yml	2 repositories (33%)	1,952 (10%)	44	-	-	-	-
yaml	1 repository (16%)	3,931 (21%)	16	-	-	-	-
cgi cgi	1 repository (16%)	605 (3%)	-	-	-	-	-
js	1 repository (16%)	605 (3%)	-	-	-	-	-
hidden folders (1) : folders with "." like names 1 repository, 9.2K lines of main code, 763* lines of other code tag dependencies: 3D graph (via repositories) \| 3D graph (excluding repositories) \| 2D graph (via repositories) \| 2D graph (excluding repositories) 2D graph (excluding repositories)
.github	1 repository (16%)	9,152 (48%)	1	-	-	-	-
hidden files (12) : files with "." like names 6 repositories, 19K* lines of main code, 2.1K lines of other code tag dependencies: 3D graph (via repositories) \| 3D graph (excluding repositories) \| 2D graph (via repositories) \| 2D graph (excluding repositories) 2D graph (excluding repositories)
.gitignore	4 repositories (66%)	15,605 (83%)	69	-	-	-	-
.fixtures.yml .fixtures.yml	4 repositories (66%)	15,605 (83%)	69	-	-	-	-
.travis.yml	3 repositories (50%)	14,258 (76%)	25	-	-	-	-
.puppet-lint.rc .puppet-lint.rc	1 repository (16%)	1,347 (7%)	44	-	-	-	-
.rspec .rspec	1 repository (16%)	1,347 (7%)	44	-	-	-	-
.gitreview	1 repository (16%)	605 (3%)	-	-	-	-	-
.asf.yaml .asf.yaml	1 repository (16%)	2,488 (13%)	8	1,239	-	-	-
.gemfile .gemfile	1 repository (16%)	1,175 (6%)	8	-	-	-	-
.rubocop.yml .rubocop.yml	1 repository (16%)	1,347 (7%)	44	-	-	-	-
.project .project	1 repository (16%)	1,175 (6%)	8	-	-	-	-
.pre-commit-config.yaml	1 repository (16%)	9,152 (48%)	1	-	-	-	-
.fixtures-puppetv3.yml .fixtures-puppetv3.yml	1 repository (16%)	3,931 (21%)	16	-	-	-	-

show visuals...